Description

L-Alanine, n-(2-Mercaptoethyl)- (9Ci) is a specialized amino acid derivative that combines the structural backbone of L-alanine with a thiol-containing side chain. This unique molecular architecture makes it a valuable intermediate for synthesizing peptides and other bioactive compounds where a free sulfhydryl group is required. It is particularly sought after by research institutions and manufacturers in the pharmaceutical and biotechnology sectors for applications in drug discovery, protein engineering, and the development of diagnostic reagents.

Application

• Pharmaceutical Intermediate: A key building block for the synthesis of novel peptide-based drugs and active pharmaceutical ingredients (APIs).
• Bioconjugation Reagent: Used to introduce thiol functional groups into proteins, antibodies, or other biomolecules for labeling, immobilization, or cross-linking.
• Research Chemical: Employed in biochemical and medicinal chemistry research to study enzyme mechanisms, receptor-ligand interactions, and to create custom peptide libraries.
• Chelating Agent Precursor: Serves as a starting material for synthesizing ligands with potential metal-chelating properties.
• Cosmetic Peptide Synthesis: Used in the development of specialized peptides for advanced skincare and cosmetic formulations.

Basic Information

Product Name	L-Alanine, n-(2-Mercaptoethyl)- (9Ci)
CAS No.	50795-37-4
Molecular Formula	C5H11NO2S
Molecular Weight	149.21 g/mol
Synonyms	N-(2-Mercaptoethyl)-L-alanine; (2S)-2-Amino-3-(2-sulfanylethyl)propanoic acid; L-2-Amino-3-(2-mercaptoethyl)propionic acid; 2-Mercaptoethyl-L-alanine; NSC 113928; Alanine, N-(2-mercaptoethyl)-, L-; β-Mercapto-L-alanine ethyl derivative
EINECS	Contact for details

Quality Control

Our production of L-Alanine, n-(2-Mercaptoethyl)- adheres to stringent quality management protocols. Each batch undergoes comprehensive analytical testing, including chiral purity verification, to ensure it meets the high standards required for research and synthesis. A detailed Certificate of Analysis (COA) providing specifications for identity, purity (by HPLC), and related substances is provided with every shipment to guarantee traceability and consistency.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry place at a controlled room temperature (15-25°C). This compound is hygroscopic (moisture-sensitive) and easily oxidized; therefore, containers should be kept tightly sealed under an inert atmosphere (e.g., nitrogen or argon) after opening to maintain stability and purity.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Chiral Purity (HPLC)	≥ 99.0% (L-isomer)
Loss on Drying	≤ 1.0%
Residue on Ignition	≤ 0.1%
Heavy Metals	≤ 20 ppm

Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.